Appending or combining to qUnions

sean_connor714

Is there a way to combine or append to a qUnion? In the code below, if "firstRow" is false, I'd like to add an additional subtract target to the boolean operation at the bottom. I've tried doing a qUnion of a qUnion and a qCreatedBy, but that doesn't seem to work either.

                var subtractTargets = qUnion([
                        qCreatedBy(id + i + "trussPoint", EntityType.BODY),
                        qCreatedBy(id + i + "slotForward", EntityType.BODY)
                ]);
                      
                if (firstRow == false)
                {
                    var previousPlane = plane(trussPoint * meter, -previousPlaneComponents.normal);
                    opExtrude(context, id + i + "slotBack", {
                        "entities" : definition.slot,
                        "direction" : evOwnerSketchPlane(context, {"entity" : definition.slot}).normal,
                        "endBound" : BoundingType.BLIND,
                        "endDepth" : definition.bodyRadius
                    });
                
                    opTransform(context, id + i + "transformSlotBack", {
                        "bodies" : qUnion([
                            qCreatedBy(id + i + "slotBack", EntityType.BODY),
                        ]),
                        "transform" : transform(evOwnerSketchPlane(context, {"entity" : definition.slot}), previousPlane)
                    });
                    
                    subtractTargets = qUnion([subtractTargets, qCreatedBy(id + i + "slotBack", EntityType.BODY)]);
                }
                
                println(subtractTargets);
                opBoolean(context, id + i + "subtract", {
                    "tools" : qCreatedBy(id + i + "slotInterior", EntityType.BODY),
                    "targets" : subtractTargets,
                    "keepTools" : true,
                    "operationType" : BooleanOperationType.SUBTRACTION
                });

Thanks,

NeilCooke

That should work, but it's better to create an array of queries then qUnion the array at the end. Also, you don't need the qUnion in the opTransform.

var subtractTargets = [
                        qCreatedBy(id + i + "trussPoint", EntityType.BODY),
                        qCreatedBy(id + i + "slotForward", EntityType.BODY)
                ];

subtractTargets = append(subtractTargets, qCreatedBy(id + i + "slotBack", EntityType.BODY));

"targets" : qUnion(subtractTargets);

_anton

Syntax looks right; I'd recommend using debug(context, myQuery) to make sure you're actually getting the expected queries. In what sense is it not working?

(Protip: qUnion has overloads for 2, 3, and 4 queries, so you don't need to enclose them in an array in those cases.)